The Tsume made it an economic center, and a large town, Chikuzen, [3] grew just outside the castle gates, which supplied the Tsume with virtually everything they need. They exported rice and grain. It had been used as a major staging point for the Crane each time Toshi Ranbo had been assaulted. [2]

During the rule of Doji Kurohito the Crane made an alliance with their ancestral enemies of the Lion Clan. Shiro Kyotei became an important court for maintaining this alliance. [5] After Toshi Ranbo became the new Imperial City, the military importance of Shiro Kyotei dropped considerably, remaining as a trade hub. Its court became an important site for maintaining good relations between Crane and Lion. [6]

In 1200 the Lion claimed the northern portion of the Kintani Valley fell within the purview of Seizuka Shiro, and the Crane were forced to vacate the stronghold. Shortly after the Lion relinquished their claim, and the palace was returned to Crane control. [7]